ci: add mcp-server build to deploy pipeline

The pipeline only built memento-note, causing mcp-server to run with
stale code/schema after pushes.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

.gitea/workflows/deploy.yaml

@@ -125,6 +125,7 @@ jobs:
 
             echo "=== Building ==="
             docker compose build memento-note
+            docker compose build mcp-server
 
             echo "=== Starting ==="
             docker compose up -d --remove-orphans